Thermal sleeve



FIG. 1 is a front view of a thermal sleeve in accordance with the present disclosure;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof,

FIG. 7 is a first top, isometric view thereof; and,

FIG. 8 is a second top, isometric view thereof. 

CLAIM The ornamental design for a thermal sleeve, as shown and described. 